Patents by Inventor Chang-De Li

Chang-De Li has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Paint stripper
    Patent number: 8361948
    Abstract: A paint stripper composition includes from about 70 to about 76 percent by volume of methylene chloride, from about 10 to about 14 percent by volume of isopropanol, from about 5 to about 8 percent by volume of formic acid, from about 1.5 to about 2.5 percent by volume of OP-10, from about 1 to about 2.5 percent by volume of phenol, and from about 2 to about 4 percent by volume of ozocerite, based upon 100 percent by volume of the total composition.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: January 29, 2013
    Assignees: Furui Precise Component (Kunshan) Co., Ltd., Foxconn Technology Co., Ltd.
    Inventors: Chang-De Li, Huang-Jin Lv, Sheng-Liang Dai
  • PAINT STRIPPER
    Publication number: 20120316096
    Abstract: A paint stripper composition includes from about 70 to about 76 percent by volume of methylene chloride, from about 10 to about 14 percent by volume of isopropanol, from about 5 to about 8 percent by volume of formic acid, from about 1.5 to about 2.5 percent by volume of OP-10, from about 1 to about 2.5 percent by volume of phenol, and from about 2 to about 4 percent by volume of ozocerite, based upon 100 percent by volume of the total composition.
    Type: Application
    Filed: August 8, 2011
    Publication date: December 13, 2012
    Applicants: FOXCONN TECHNOLOGY CO., LTD., FURUI PRECISE COMPONENT (KUNSHAN) CO., LTD.
    Inventors: CHANG-DE LI, HUANG-JIN LV, SHENG-LIANG DAI
  • FAN BLADE SYSTEM
    Publication number: 20120156042
    Abstract: A fan blade system includes a hub and a plurality of fan blades. The hub has a sidepiece and a plurality of protrusions alternately disposed along the sidepiece. Each of the fan blades corresponds to one of the protrusions and extends radially outwards from the sidepiece. Each protrusion is embedded in a corresponding fan blade and couples the fan blade to the hub. Both the hub and the plurality of protrusions are made of metallic material, while the plurality of fan blades is made of plastic material. The fan blade system provides consistent and mass-produceable fan blades with enhanced mechanical strength.
    Type: Application
    Filed: December 19, 2010
    Publication date: June 21, 2012
    Applicant: ASIA VITAL COMPONENTS CO., LTD.
    Inventor: Chang-De Li